Adjective

1. Imposing, impressive; resolute; manly.
   • 1966, "The Graven Image," Time, 12 Aug.:

     He is tall in the saddle (6 ft. 2 in.) and so adamantine that Jennifer Jones broke her hand slapping his face.

Adverb

1. Imposingly, impressively; resolutely; manfully.
   • 2008, "Conservative Author Buckley Dead at 82," Associated Press, 27 Feb.:

     His son noted Buckley had died "with his boots on, after a lifetime of riding pretty tall in the saddle."